Abstract: Disclosed is a valve arrangement for underground control of a fluid flow and an associated method, the arrangement including a valve having a valve housing containing fluid control means for controlling a flow of fluid through pipe means arranged below the surface of the ground, where the fluid control means is actuated by means of mechanical manipulation of an operating device of the valve and the operating device is coupled to the fluid control means, the valve having valve identification means including data regarding the specific valve type, where the valve arrangement further includes an extension device including an extension device housing surrounding an extension rod, where the extension rod is rotatably supported by the extension device housing, where the extension rod is mechanically coupled to the operating device to enable the mechanical manipulation being performed at the ground surface, and the extension device further includes dedicated connection means extending between a valve end and a groun

Abstract: A valve for control of a fluid flow including a valve housing, fluid control means arranged inside the valve housing, shaft means having a first shaft friction surface and a second shaft friction surface arranged in a mutual shaft friction surface angle, where the fluid control means is arranged to be displaced along a rotational axis of the shaft means in accordance with a rotation of the shaft means, and collar means having a first collar friction surface and a second collar friction surface arranged in a mutual collar friction surface angle, where the collar friction surfaces are arranged to mesh with the shaft friction surfaces, and where the shaft friction surface angle and the collar friction surface angle are between 120° and 170° and the collar means are fixed inside the valve housing.

Abstract: A valve for control of a fluid flow including a valve housing, fluid control means for controlling the flow of fluid through the valve housing, where the fluid control means is arranged inside the valve housing, shaft means having a set of shaft friction surfaces including a first shaft friction surface and a second shaft friction surface arranged in a mutual shaft friction surface angle, the shaft friction surface angle is an inside angle between the first shaft friction surface and the second shaft friction surface and the fluid control means is arranged to be displaced along the rotational axis of the shaft means in accordance with a rotation of the shaft means, collar means including a set of collar friction surfaces having a first collar friction surface and a second collar friction surface arranged in a mutual collar friction surface angle, where the collar friction surface angle is an inside angle between the first collar friction surface and the second collar friction surface and the set of collar fri

Abstract: Disclosed is a valve arrangement for underground control of a fluid flow and an associated method, the arrangement including a valve having a valve housing containing fluid control means for controlling a flow of fluid through pipe means arranged below the surface of the ground, where the fluid control means is actuated by means of mechanical manipulation of an operating device of the valve and the operating device is coupled to the fluid control means, the valve having valve identification means including data regarding the specific valve type, where the valve arrangement further includes an extension device including an extension device housing surrounding an extension rod, where the extension rod is rotatably supported by the extension device housing, where the extension rod is mechanically coupled to the operating device to enable the mechanical manipulation being performed at the ground surface, and the extension device further includes dedicated connection means extending between a valve end and a groun